Snowden made a calculated decision to move from Dell Inc to another NSA contractor, Booz Allen Hamilton, because he would have wide-ranging access to NSA data at the latter firm, one source with knowledge of the matter said.
Glenn Greenwald, who met with Snowden in Hong Kong and was among the first to report on the leaked documents for the Guardian, said the former NSA contractor had “taken extreme precautions to make sure many different people around the world have these archives to insure the stories will inevitably be published.”
“If anything happens at all to Edward Snowden, he has arranged for them to get access to the full archives,” Greenwald said in a June interview with the Daily Beast Web site. “I don’t know for sure whether he has more documents than the ones he has given me ... I believe he does.”
In an e-mail exchange with Reuters, Greenwald, who has said he remains in contact with Snowden, affirmed his statements about Snowden’s “precautions,” but said he had nothing to add.
Officials believe that the “doomsday” cache is stored and encrypted separately from any material that Snowden has provided to media outlets.
Conservative British politicians, including Louise Mensch, a former member of parliament, have accused the Guardian, one of two media outlets to first publish stories based on Snowden’s leaks, of “trafficking of GCHQ agents’ names abroad.”
No names of British intelligence personnel have been published by any media outlet. After British officials informed the Guardian it could face legal action, the newspaper disclosed it had destroyed computers containing Snowden material on GCHQ, but had provided copies of the data to the New York Times and the US nonprofit group ProPublica.
Sources familiar with unpublished material Snowden downloaded said it also contains information about the CIA — possibly including personnel names — as well as other US spy agencies such as the National Reconnaissance Office and the National Geospatial-Intelligence Agency, which operate US image-producing satellites and analyze their data.
US security officials have indicated in briefings they do not know what, if any, of the material is still in Snowden’s possession. Snowden himself has been quoted as saying he took no such materials with him to Russia.